Method and apparatus for composite data stream storage and playback
US6564003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1999 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Nov 4, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/19
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A composite data stream is stored on a data storage medium. The composite data stream comprises a plurality of program channels to provide services such as satellite digital audio radio service (SDARS), among others. The program channels are multiplexed into the composite data stream, which also comprises control data for indicating where services are located in the composite data stream. A playback device is configured to access the composite data stream on the data storage medium, to demultiplex at least the program channels and to retrieve selected services from the data storage medium in response to user inputs by using the control data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.